internal static RubyExceptionData /*!*/ AssociateInstance(Exception /*!*/ e)
{
RubyExceptionData result;
Exception visibleException = RubyUtils.GetVisibleException(e);
if (e == visibleException || visibleException == null)
{
result = new RubyExceptionData(e);
}
else
{
// Async exception
Debug.Assert(e is ThreadAbortException);
result = GetInstance(visibleException);
if (result._exception == visibleException)
{
// A different instance of ThreadAbortException is thrown at the end of every catch block (as long as
// Thread.ResetAbort is not called). However, we only want to remember the first one
// as it will have the most complete stack trace.
result._exception = e;
}
}
e.Data[_DataKey] = result;
return(result);
}
public static void ActiveExceptionHandled(Exception visibleException)
{
Debug.Assert(RubyUtils.GetVisibleException(visibleException) == visibleException);
RubyExceptionData data = RubyExceptionData.GetInstance(visibleException);
if (data._exception != visibleException)
{
// The exception was raised asynchronously with Thread.Abort. We can not just catch and ignore
// the ThreadAbortException as the CLR keeps trying to re-raise it unless ResetAbort is called.
//
// Note that ResetAbort can cause ThreadAbortException.ExceptionState to be cleared (though it may
// not be cleared under some circustances), and we use that to squirrel away the Ruby exception
// that the user is expecting. Hence, ResetAbort should only be called when
// ThreadAbortException.ExceptionState no longer needs to be accessed.
if ((Thread.CurrentThread.ThreadState & System.Threading.ThreadState.AbortRequested) != 0)
{
Thread.ResetAbort();
}
}
}